Shahbaaz
Member
Hello Guys,
I have tried the programming but can't twist my mind to make it work correctly. I'm using S71200 and TIA Portal.
My system has three(3) pumps and here's how it should operate:
- I want to run the pumps alternatively, one after the other. Start By Pump1, then after some time switch Pump2 ON and Pump1 OFF. Then switch Pump3 ON and Pump2 OFF. Then the cycles continues - provided they all in Auto and not faulty or emergency.
- If any of the pumps is faulty/emergency, the other two pumps should be able to run and swap between them.
- The pumps are running PID to maintain pressure.
Having difficulties doing the swapping.
Your thoughts!
Thanks.
I have tried the programming but can't twist my mind to make it work correctly. I'm using S71200 and TIA Portal.
My system has three(3) pumps and here's how it should operate:
- I want to run the pumps alternatively, one after the other. Start By Pump1, then after some time switch Pump2 ON and Pump1 OFF. Then switch Pump3 ON and Pump2 OFF. Then the cycles continues - provided they all in Auto and not faulty or emergency.
- If any of the pumps is faulty/emergency, the other two pumps should be able to run and swap between them.
- The pumps are running PID to maintain pressure.
Having difficulties doing the swapping.
Your thoughts!
Thanks.